Inorganic Solid Phases

Na0.18K1.77Mg0.82Ca2.42(Al8.92Si27.18O72)·29.82H2O (K2Na2CaMg3Al13Si23O72[H2O]27) Crystal Structure

General Information

  • Phase Label(s): K2Na2CaMg3Al13Si23O72[H2O]27
  • Structure Class(es): zeolite ERI
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP114
  • Space Group: 194
  • Phase Prototype: K2Na2CaMg3(Al0.36Si0.64)36O72[H2O]27
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; U.S.A. New York, Brookhaven National Laboratory, National Synchrotron Light Source, X7A (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate, hydrate
  • Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement; 87 variables; 1818 reflections, wRP = 0.093; RB = 0.150
  • Sample Detail(s): erionite sample from U.S.A. Oregon, Agate Beach, electron microprobe analysis; Na0.18K1.77Mg0.82Ca2.42(Al8.92Si27.18O72)[H2O]29.82, Si/(Si+Al) ratio 0.75/1, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: K1.9Na0.2Ca2.5Mg0.9Al8.9Si27.1O72[H2O]29.9
  • Alphabetic Formula: Al8.9Ca2.5[H2O]29.9K1.9Mg0.9Na0.2O72Si27.1
  • Published Formula: Na0.18K1.77Mg0.82Ca2.42(Al8.92Si27.18O72)·29.82H2O
  • Refined Formula: Al9Ca2.72H63.12K1.74Mg0.80O103.56Si27
  • Wyckoff Sequence: 194,l2k7jih2f4b
  • Z Formula Units: 1
  • Density: ρ = 2.08 Mg·m−3

Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Displacement Parameters

Isotropic

Site
Published
U [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1410824

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

  • Cite this content

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